Rancho Cucamonga homes
Census survey data (ACS 2020-2024) put Rancho Cucamonga's median year built at 1988. Of roughly 61,000 homes, about 30 percent are from 2000 or later and about 29 percent from before 1980.
Older homes near the original town centers may still have asbestos in floors or ceilings and lead in pre-1978 paint. In the newer neighborhoods, people more often ask about leaks, mold and indoor air.
Foothill winds and dry heat
NOAA's nearest normals station, at Ontario International Airport, averages August highs near 95°F and about 12 inches of yearly rain, mostly from November through March (1991-2020).
Strong seasonal winds off the foothills can push dust indoors and work rain past worn window seals. If a sill or wall stays damp after a storm, a partner can check whether water got behind it.
Smoke and fire testing
If smoke or ash reached a home in Rancho Cucamonga, you can request smoke and fire testing. A partner can sample soot and ash on surfaces and send the samples out for analysis.
South Coast AQMD
Western San Bernardino County, Rancho Cucamonga included, is in the South Coast AQMD on CARB's map. Ask your contractor about asbestos survey and notice requirements before demolition.
Services
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Questions
Can I request indoor air testing in Rancho Cucamonga?
Yes. Describe what you notice, such as dust, odors or stuffiness, and the partner suggests what to measure.
My Rancho Cucamonga home was built in the 1980s. Is asbestos testing worth it?
Less often than for older homes, but some materials were still made with it. Ask a partner about the specific material you plan to disturb.